/usr/include/sofa/component/topology/QuadSetTopologyContainer.h is in libsofa1-dev 1.0~beta4-6.
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* SOFA, Simulation Open-Framework Architecture, version 1.0 beta 4 *
* (c) 2006-2009 MGH, INRIA, USTL, UJF, CNRS *
* *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, or (at *
* your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, but WITHOUT *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License *
* for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
*******************************************************************************
* SOFA :: Modules *
* *
* Authors: The SOFA Team and external contributors (see Authors.txt) *
* *
* Contact information: contact@sofa-framework.org *
******************************************************************************/
#ifndef SOFA_COMPONENT_TOPOLOGY_QUADSETTOPOLOGYCONTAINER_H
#define SOFA_COMPONENT_TOPOLOGY_QUADSETTOPOLOGYCONTAINER_H
#include <sofa/component/topology/EdgeSetTopologyContainer.h>
namespace sofa
{
namespace component
{
namespace topology
{
class QuadSetTopologyModifier;
using core::componentmodel::topology::BaseMeshTopology;
typedef BaseMeshTopology::PointID PointID;
typedef BaseMeshTopology::EdgeID EdgeID;
typedef BaseMeshTopology::QuadID QuadID;
typedef BaseMeshTopology::Edge Edge;
typedef BaseMeshTopology::Quad Quad;
typedef BaseMeshTopology::SeqQuads SeqQuads;
typedef BaseMeshTopology::QuadEdges QuadEdges;
typedef BaseMeshTopology::VertexQuads VertexQuads;
typedef BaseMeshTopology::EdgeQuads EdgeQuads;
/** Object that stores a set of quads and provides access
to each quad and its edges and vertices */
class SOFA_COMPONENT_CONTAINER_API QuadSetTopologyContainer : public EdgeSetTopologyContainer
{
friend class QuadSetTopologyModifier;
public:
QuadSetTopologyContainer();
QuadSetTopologyContainer(const sofa::helper::vector< Quad >& quads );
virtual ~QuadSetTopologyContainer() {}
/// Procedural creation methods
/// @{
virtual void clear();
virtual void addQuad( int a, int b, int c, int d );
/// @}
virtual void init();
/// BaseMeshTopology API
/// @{
const SeqQuads& getQuads()
{
return getQuadArray();
}
/// Returns the set of edges adjacent to a given quad.
const QuadEdges& getEdgeQuadShell(QuadID i)
{
return getQuadEdge(i);
}
/** \brief Returns the set of quads adjacent to a given vertex.
*
*/
virtual const VertexQuads& getQuadVertexShell(PointID i);
/** \brief Returns the set of quads adjacent to a given edge.
*
*/
virtual const EdgeQuads& getQuadEdgeShell(EdgeID i);
/** Returns the indices of a quad given four vertex indices : returns -1 if none */
virtual int getQuadIndex(PointID v1, PointID v2, PointID v3, PointID v4);
/// @}
/** \brief Checks if the topology is coherent
*
* Check if the shell arrays are coherent
*/
virtual bool checkTopology() const;
/** \brief Returns the Quad array.
*
*/
const sofa::helper::vector<Quad> &getQuadArray();
/** \brief Returns the Quad Vertex Shells array.
*
*/
const sofa::helper::vector< sofa::helper::vector<unsigned int> > &getQuadVertexShellArray();
/** \brief Returns the QuadEdges array (ie provide the 4 edge indices for each quad)
*
*/
const sofa::helper::vector< QuadEdges > &getQuadEdgeArray() ;
/** \brief Returns the Quad Edge Shells array (ie provides the quads adjacent to each edge)
*
*/
const sofa::helper::vector< sofa::helper::vector<unsigned int> > &getQuadEdgeShellArray() ;
/** \brief Returns the number of quads in this topology.
* The difference to getNbQuads() is that this method does not generate the quad array if it does not exist.
*/
unsigned int getNumberOfQuads() const;
/** \brief Returns the 4 edges adjacent to a given quad.
*
*/
const QuadEdges &getQuadEdge(const unsigned int i) ;
/** returns the index (either 0, 1, 2, 3) of the vertex whose global index is vertexIndex. Returns -1 if none */
int getVertexIndexInQuad(Quad &t,unsigned int vertexIndex) const;
/** returns the index (either 0, 1, 2, 3) of the edge whose global index is edgeIndex. Returns -1 if none */
int getEdgeIndexInQuad(QuadEdges &t,unsigned int edheIndex) const;
protected:
/** \brief Creates the QuadSet array.
*
* This function must be implemented by derived classes to create a list of quads from a set of hexahedra for instance
*/
virtual void createQuadSetArray();
/** \brief Creates the EdgeSet array.
*
* Create the set of edges when needed.
*/
virtual void createEdgeSetArray();
bool hasQuads() const;
bool hasQuadEdges() const;
bool hasQuadVertexShell() const;
bool hasQuadEdgeShell() const;
void clearQuads();
void clearQuadEdges();
void clearQuadVertexShell();
void clearQuadEdgeShell();
private:
/** \brief Creates the array of edge indices for each quad
*
* This function is only called if the QuadEdge array is required.
* m_quadEdge[i] contains the 4 indices of the 4 edges opposite to the ith vertex
*/
void createQuadEdgeArray();
/** \brief Creates the Quad Vertex Shell Array
*
* This function is only called if the QuadVertexShell array is required.
* m_quadVertexShell[i] contains the indices of all quads adjacent to the ith vertex
*/
void createQuadVertexShellArray();
/** \brief Creates the Quad Edge Shell Array
*
* This function is only called if the QuadVertexShell array is required.
* m_quadEdgeShell[i] contains the indices of all quads adjacent to the ith edge
*/
void createQuadEdgeShellArray();
/** \brief Returns a non-const quad vertex shell given a vertex index for subsequent modification
*
*/
sofa::helper::vector< unsigned int > &getQuadVertexShellForModification(const unsigned int vertexIndex);
/** \brief Returns a non-const quad edge shell given the index of an edge for subsequent modification
*
*/
sofa::helper::vector< unsigned int > &getQuadEdgeShellForModification(const unsigned int edgeIndex);
protected:
/// provides the set of quads
sofa::helper::vector<Quad> m_quad;
DataPtr< sofa::helper::vector<Quad> > d_quad;
/// provides the 4 edges in each quad
sofa::helper::vector<QuadEdges> m_quadEdge;
/// for each vertex provides the set of quads adjacent to that vertex
sofa::helper::vector< sofa::helper::vector< unsigned int > > m_quadVertexShell;
/// for each edge provides the set of quads adjacent to that edge
sofa::helper::vector< sofa::helper::vector< unsigned int > > m_quadEdgeShell;
virtual void loadFromMeshLoader(sofa::component::MeshLoader* loader);
};
} // namespace topology
} // namespace component
} // namespace sofa
#endif
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